Scientists under all forms of government must be able to participate fully in international efforts.

In 1975 I met Alison Brown and in 1982 we were married. She works for Cornell Computer Services.

My grandfather on my mother's side was a professor of mechanical engineering at the Massachusetts Institute of Technology; my other grandfather was a lawyer, and one time Speaker of the Tennessee House of Representatives.

When I entered graduate school I had carried out the instructions given to me by my father and had knocked on both Murray Gell-Mann's and Feynman's doors and asked them what they were currently doing. Murray wrote down the partition function for the three-dimensional Ising model and said it would be nice if I could solve it (at least that is how I remember the conversation). Feynman's answer was 'nothing'.

Life is to be lived through action not by dreaming.

One other hobby of mine has been playing the oboe but I have not kept this up after 1969.

My graduate studies were carried out at the California Institute of Technology.